Billet-turning device.



Patented Oct. 24, 1911.

3 SHEET8SHEET 2.

F l 1 l l l I 0., WASHINGTON u c F. E. MESTA. BILLET TURNING DEVICE.

11111101111011 FILED 1mm. 9, 1900.

1,006,582. Patented 001. 24, 1911.

3 SHEETS-SHEET 3.

FREDERICK E. MESTA, OF PITTSBURGH, PENNSYLVANIA.

BILLET-TURNING DEVICE.

Specification of Letters Patent.

Application filed September 9, 1908.

Patented Oct. 24, 1911. Serial No. 452,190.

To all whom it may concern:

Be it known that I, FREDERICK E. MESTA, of Pittsburgh, in the county ofAllegheny and State of Pennsylvania, have invented a new and usefulImprovement in Billet- Turning Devices, of which the following is afull, clear, and exact description, reference being had to theaccompanying drawings, forming part of this specification, in which-Figure 1 is a top plan view of my improved device applied to a rollingmill feed table; Fig. 2, is a sectional side elevation of the same; Fig.2 is a similar View of one portion of the cylinder which is broken awayin Fig. 2. Figs. 3 and 4: are views similar to Fig. 2, showing otherforms of the invention.

My invention relates to the turning of metal in connection with arolling mill, and is designed to provide an improved turning device bywhich the metal will be gripped and positively turned over.

It is also designed to provide such a device adapted to turn the metalat different points in the width of the feed table and to provide asimple mechanism by which the metal is first gripped and then turned bymeans of the same actuating connection.

"In the drawing, referring to Figs. 1 and 2, 2 represents the side guardof the usual ingot manipulator. As shown in Fig. 1, this side guard iscut away or recessed to receive my turning device, which is pivotedthereto. This turning device consists of a wrench, the lower jaw 3 ofwhich has a slotted pivot connection 1 with a pivot pin on the sideguard.

This lower member normally rests upon a stop 5, secured in the rear ofthe side guard, thereby clearing the table. The upper jaw 7 of thewrench is pivoted to the lower member at 8, and is preferably providedwith a ball or roller 9 in its contacting face. When not in action,these parts are in the position shown in Fig. 2, the upper jaw clearingthe side guard and having a raised portion 10, abutting against theupper rear portion of the lower jaw to stop it in the open positionshown. The upper jaw is connected by a pivot bearing 11, with anactuating member, which, in this form, is a connecting rod 12, pivotedat 13 to a cross head 14:, movable in a cross head guide 15, secured toan upwardly and rearwardly projecting support 16 and which confines themovement of the cross head in a right line. The cross head is connectedby the pivotal link 17 with a rock lever 18, pivoted to a stationaryhearing at 19. This rock arm 18 is connected at an intermediate point bypivotal link 20 with the piston rod of hydraulic cylinder 21, having apiston 22. This cylinder is double acting, one end of the cylinder beingclosed and the other end provided with a stuffing box 23, for the pistonrod. Continuous accumulator pressure is applied through pipe 24, to thesmaller eflective area of the piston, while pressure may be appliedthrough pipe 25 to the other and larger effective area of the piston tooperate the wrench.

In Fig. 2, I have shown diagrammatically an accumulator 2t from whichthe pipe 24 leads, and in Fig. 2 I have shown the pipe 25 as having acontrol valve 25*.

In using the device, the pressure being ap plied to the larger effectivearea of the piston, the first action will be to swing down the upper jawof the wrench until its ball face strikes the upper face of the metal,which is indicated by dotted line at 26. As soon as the metal is thusgripped, the further pressure turns the entire wrench on its pivotalconnection with the side guard, the slotted connection allowing thewrench to accommodate itself to different sizes of billets. During thisturning, the entire wrench actsas a single lever, turning on the pivotof the lower member as a fulcrum. The metal will thus be turned throughan angle of ninety degrees and as more resistance is offered in'turningthe tighter will be the grip of the wrench. When the turning has beeneffected, the pressure is relieved from the face of the piston having alarge effective area and the accumulator pressure then returns the partsto the ordinary position shown, first retracting the upper jaw and thenturning the entire wrench back until the lower member strikes the stop.When the turned metal is moving across the table and the wrench is outof operation, the operating levers will be pulled by the force of theconstant accumulator pressure and hold the wrench in position back ofthe side guard. This allows the side guard to sweep over the table withthe wrench in the open position. In the form shown, the table rollers,indicated at 27, are rotated by a longitudinal shaft 28 having bevelgears 29, intermeshing with bevel gears 30, on the table rollers.

In Fig. 3, I show a form similar to that of Figs. 1 and 2, except thatthe hydraulic cylinder 31 for actuating the wrench is mounted upon themoving frame, it having suitable flexible hose connections or elbow pipeconnections with the accumulator or the other source of water underpressure. In this case I have shown the piston as provided with links32, extending to rear cross heads 83, moving in guides at the side ofthe cylinder, this cross head having link connection 34 with the upperwrench member.

In Fig. 4 I show another form of the device in which the lower wrenchmember 35 is provided with horizontal rollers 36,

and vertical rollers 37. These rollers are arranged to contact with themetal as it passes in front of the wrench. In this case I show theconnecting rod 38 as pivoted to a rock arm 39, linked to a piston rod40, common to two single acting cylinders 41,

arranged in line with each other, pressure being constantly admitted tothe smaller cylinder to move the piston in one direction, and thepressure when admitted to the larger cylinder, overcoming the resistanceof the smaller cylinder to move the piston forwardly in the oppositedirection, depending upon the movement desired to be given to thewrench. The final position of the wrench in turning is shown in dottedlines. In this case, the lower portion 42 of the side frame acts as astop for the lower member of the'wrench.

The advantages of my invention will be apparent to those skilled in theart. The parts are simple in character and few in number, and the jawmembers are so arranged that a positive grip is obtained upon the pieceto be turned, the piece itself, after being gripped, causing the jawmembers to be locked to each other to turn as a single unit. The partsin their retracted position clear the feed table, and do not interferewith the transfer movements of the manipulator.

Various changes may be made in the form, construction and arrangement ofthe jaw members and their actuating connections within the scope of theappended claims.

While the apparatus has been described as using water or hydraulicpressure, 0bviously air or any fluid pressure may be employed as theactuating medium within the scope of the claims.

I claim: a

1. A metal turning device for rolling mills having grippers arranged toengage the different faces of the metal, a stationary fulcrum pin forthe grippers, and means to close the grippers and to shift them on thepin to change the fulcrum; substantially as described. 7

2. A metal turning device for rolling mills, comprising a wrench havinga pivoted member, a second member pivoted to the first member and bothmembers being mounted to turn upon the pivot of the first named member,a single actuating connection connected to the second member andarranged to turn the second member upon the first member, and then turnthe wrench as a whole on the pivot pin of the first member to effect thetransfer movement of the piece; substantially as described.

3. A metal turning device, comprising a support, a lower jaw memberpivoted to the support, an upper jaw member pivoted to the lower jawmember, said upper jaw member having an initial movement on its pivot tograsp the piece to be turned between it and the lower jaw member, andthe two jaw members then being connected through said piece to turn as aunit on the pivot of'the lower member, and an actuating device connectedto the upper member to effect both the described movements;substantially as described.

4. A metal turning device, comprising a support, a lower jaw memberpivoted to the support, an upper jaw member pivoted to the lower jawmember, said upper jaw member having an initial movement on its pivot tograsp the piece to be turned between it and the lower jaw member, andthe two jaw members then being connected through said piece to turn as aunit on the pivot of the lower member, and an actuating device connectedto the upper member to effect both the described movements, the lowerjaw member having a loose connection with its pivot in addition to itspivotal connection; substantially as described.

5. A metal turning device for rolling mills, comprising a wrench havingtwo members, one of said members having a slot engaging a stationary pinand arranged to rotate thereon, and means for closing and turning thewrench; substantially as described.

6. A metal turning device for rolling mills, comprising a wrench havingan upper and lower jaw pivoted to each other, a shiftable pivotalconnection for one of the jaw members on which the wrench is turned, thepivotal connection being arranged to allow the wrench to adjust itselfto different sizes of metal, and means to close the jaws and then turnthe wrench; substantially as described.

7. A metal turning device for rolling mills, comprising a supportingmember, a wrench having a shifting pivotal connection with-thesupporting member and arranged to accommodate the wrench to differentsizes of metal, and mechanism for closing the wrench and then turning iton its supporting member; substantially as described.

8. A metal turning device for rolling mills, comprising a wrench havinga lower member mounted upon a pivot pin upon which the entire wrench isarranged to turn in a vertical plane, a stop for supporting the lowermember in a position to clear the table, and an upper jaw pivoted to thelower jaw and having an actuating connection; sub stantially asdescribed.

9. A metal turning device for rolling mills, comprising a wrench havinga pivoted jaw member, a second jaw member pivoted to the first jawmember and also arranged to move bodily with the first jaw member,actuating connections connected to the second jaw member arranged toturn it on the first jaw member, and then turn both jaw members on thepivotal connection of the first jaw member, the actuating connectionsbeing arranged to reverse the movement of the second jaw member on thefirst jaw member and then move both jaws members on the pivotalconnection of the first jaw member; substantially as described.

10. A metal turning device for rolling mills, comprising a wrench havinga jaw member, a slot and pin pivotal connection for the jaw member, asecond jaw member pivoted to the first jaw member, and actuatingconnections connected to the second jaw member arranged to swing it onthe first jaw member and then swing the wrench on the slot and pinconnection of the first jaw member, the actuating connections beingarranged to return the wrench to its initial position, and allow theturned article to remain in its turned position; substantially asdescribed.

11. A metal turning device for rolling mills, comprising a wrench havinga jaw member having a slot and pin pivotal connection with a support, asecond jaw member having a pivotal connection with the first j awmember, a stop on the first jaw member for the second jaw member, andactuating means to swing the second jaw member on the first jaw memberand then swing the wrench on the slot and pin pivotal connection, theactuating means being arranged to reverse the movement of the second jawmember on the first jaw member, and then reverse the move ment of thewrench on the slot and pin pivotal connection; substantially asdescribed.

12. A metal turning device for rolling mills having grippers arranged toengage the different faces of the metal, a stationary fulcrum pin forthe grippers, and means to close the grippers and to shift them on thepin to change the fulcrum, said device comprising a power cylinder, apiston therein, means for intermittently admitting pressure to one sideof the piston and for maintaining a constant pressure at the oppositeside of the piston; substantially as described.

In testimony whereof, I have hereunto set my hand.

F. E. MESTA. Witnesses:

G. E. TOWNSEND, W. D. ROWAN.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

Washington, D. G. 1

